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Matches 1 - 50 out of 33,830

Document Document Title
WO/2019/212665A1
A welding-type power supply that receives alternating current (AC) input power and converts the AC input power to direct current (DC) power to provide power for welding tools. The welding-type power supply is configured to detect whether...  
WO/2019/208473A1
This power consumption device is made to consume power until a current flowing through a power consumption element (for example, a resistance element) reaches a prescribed upper limit. A monitor voltage conversion unit 20 converts a volt...  
WO/2019/208147A1
This electricity storage device is provided with: a first terminal unit connected to a first device in an energizable manner; a second terminal unit connected to a second device in an energizable manner; an electricity storage unit; a wi...  
WO/2019/208410A1
A failure diagnosis method for an engine starting system 1 in which a starting electricity-storage device 11 supplying electric power to a starter 10 and an accessory electricity-storage device 12 are connected in parallel. The failure d...  
WO/2019/207626A1
The battery system of an embodiment is provided with: a fuse; a battery unit connected in series with the fuse; a first contactor connected in series with the battery unit; a blowing circuit which is connected in parallel with the fuse a...  
WO/2019/205940A1
Provided are an over-voltage protection circuit for a switching power supply, the switching power supply, and a compressor. The over-voltage protection circuit comprises: a first voltage sampling module, with one end of the first voltage...  
WO/2019/196013A1
A boost converter (100) includes a voltage output terminal (128), a power transistor (104), and short circuit protection circuitry (114). The voltage output terminal (128) is configured to provide a boosted output voltage generated by th...  
WO/2019/197017A1
A method and device for load shedding in an electrical power system is proposed. The electrical power system includes a device that electrically couples one or more load feeder lines to the electrical power system, where each load feeder...  
WO/2019/158754A4
Disclosed is an electrical condition monitoring system (100) including a data server arrangement that is connectable to a monitoring unit that is configured to monitor an electrical device when in operation, wherein: the monitoring unit ...  
WO/2019/195438A1
In a circuit for ground disconnection protection, the circuit includes power transistor elements in a common-source arrangement (511, 512) coupled between a first ground (272) and a second ground (274). The power transistor elements (511...  
WO/2019/194206A1
This fuse (1) having a frequency separation function is provided with: an input port part (1a); an output port part (1b); a first through part (1c) which is provided between the input port part and the output port part, and guides a ligh...  
WO/2019/194340A1
A constant power LED converter according to one embodiment of the present invention comprises: a power supply unit for receiving alternating current power, converting same into direct current power, and outputting the direct current powe...  
WO/2019/189405A1
Provided is a diagnostic device (51) that diagnoses a damage of a shut-off device (45) that shuts off current of a power storage element (2), wherein damage to the shut-off device is diagnosed on the basis of a short-circuit current Is d...  
WO/2019/186490A1
The present invention discloses a method and device for protection in a multi-terminal power transmission system. The device obtains measurements of pre-fault and during-fault currents for each terminal of the power transmission system a...  
WO/2019/184332A1
Disclosed are a protection system of a refrigeration device and a protection method for the safe operation of a compressor. The protection system comprises: a measurement module (100), wherein the measurement module (100) is used for mea...  
WO/2019/158751A4
Disclosed is an electrical condition monitoring system that is connectable to an electrical device for monitoring the electrical device when in operation, wherein: (i) the electrical condition monitoring system includes (a) a sensing arr...  
WO/2019/181219A1
A gear motor (motor device) (1) provided with a three-phase motor (2) and a terminal box (4) which houses a power supply connection terminal (5a) for connecting the three-phase motor (2) to an AC power supply (6) is provided with: a powe...  
WO/2019/179624A1
A circuit arrangement for decaying of a transient current flow between a first point and a second point on a neutral line of a high-voltage direct current (HVDC) power transmission system is provided. The circuit arrangement may include ...  
WO/2019/179613A1
A health investigating arrangement (22) for a first unidirectional conducting element (MBD1) having a reverse blocking state, a forward conduction state and a faulty state comprises a voltage dividing circuit (26) in parallel with the el...  
WO/2019/176359A1
In order to enable suppression of occurrence of unnecessary leakage flux even when power feeding to a battery is forcedly blocked, this power reception device for wirelessly receiving power feeding upon receiving an AC magnetic field emi...  
WO/2019/176350A1
An on-vehicle auxiliary machine apparatus (10) is provided with: an electric power storage device (20); auxiliary machines (31, 32) that are supplied with electric power from the electric power storage device; switching parts (41, 42) th...  
WO/2019/174680A1
The pyrotechnic fuse device (2A, 2B) comprises a pyrotechnic separating unit (4) and a busbar (6A, 6B). The busbar (6A, 6B) has a provided separating point (34). A separating region (36) adjoins both sides, said region having a reduced t...  
WO/2019/176358A1
In order to suppress occurrence of unnecessary leakage flux even when the operation of a power conversion unit stops while current is flowing through a coil of a power reception device, a power reception device 200 is provided with: a se...  
WO/2019/172239A1
In order to widen the options of power supply devices to be applied, this operation device is provided with: an operation unit that operates by the current supplied from a power supply; and an adjustment unit that lowers the value of the...  
WO/2019/170035A1
Disclosed are an IGBT drive circuit for a motor controller, and a motor controller. The IGBT drive circuit comprises: a function safety circuit provided on a drive board of a motor controller, and a detection feedback circuit and a pulse...  
WO/2019/169563A1
A battery pack and an electric vehicle. The battery pack comprises at least two batteries (101, 102) arranged in series and at least one disconnection unit (103). Each of the batteries comprises a positive electrode and a negative electr...  
WO/2019/172061A1
[Problem] To achieve an unmanned aerial vehicle that can be disabled when a phenomenon that can cause battery malfunction is detected. [Solution] This unmanned aerial vehicle, in which a battery 1 can be mounted, comprises sensors 23, 24...  
WO/2019/172060A1
[Problem] To achieve a battery which can be disabled when a phenomenon that can cause malfunction is detected, and a charger. [Solution] This battery is provided with: a battery pack 11 which has battery cells; sensors 12, 13 which detec...  
WO/2019/169968A1
The present utility model provides a battery protection circuit, comprising a first protection chip. The first protection chip comprises an overcurrent detection end and a power output end. The overcurrent detection end of the first prot...  
WO/2019/170229A1
The invention relates to a module (201) of a modular multilevel converter (1) comprising a first power semiconductor component (202), a second power semiconductor component (206), and a cooling device (229) for the first and the second p...  
WO/2019/165750A1
A protection apparatus, a protection control method and a modularized multi-level converter. The protection apparatus comprises a plurality of protection devices (11) and a controller (12). Each protection device (11) comprises N capacit...  
WO/2019/168586A1
A method for detecting a voltage disturbance on an electrical line coupled to a utility that provides three-phase electrical AC power signals to a critical load that includes a transformer. The method includes reading instantaneous volta...  
WO/2019/168641A1
Disclosed are systems and methods to determine an overexcitation condition on electric power delivery system equipment that includes a magnetizing core. Overexcitation conditions are determined even during sub-synchronous resonance, ferr...  
WO/2019/166535A1
The present invention provides a relay protection apparatus (10) and method (601, 602, 603), and a computer storage medium. The method comprises: acquiring an output alternating voltage, an output alternating current, an input direct vol...  
WO/2019/168624A1
The present disclosure pertains to systems and methods of monitoring communication devices and communication links in a software defined network (SDN). In one embodiment, a system may include a communications interface configured to rece...  
WO/2019/164572A1
Methods and systems are provided for automatically coordinating protection settings for relays within an electrical power distribution network. A method includes using a graph traversal mechanism to analyze geographical-based equipment d...  
WO/2019/162016A1
The invention presents an apparatus (110) for setting a specific operating state of an electrical machine (115) of a vehicle (100), wherein the apparatus (110) has an inverter (130) for supplying electrical energy which is provided by a ...  
WO/2019/158751A1
Disclosed is an electrical condition monitoring system that is connectable to an electrical device for monitoring the electrical device when in operation, wherein: (i) the electrical condition monitoring system includes (a) a sensing arr...  
WO/2019/158754A1
Disclosed is an electrical condition monitoring system (100) including a data server arrangement that is connectable to a monitoring unit that is configured to monitor an electrical device when in operation, wherein: the monitoring unit ...  
WO/2019/153548A1
Disclosed by the present invention is an optical coherence tomography (CT)-based starting standby transformer open-phase detection method: using a starting standby transformer in a power plant as a standby power source, the same being in...  
WO/2019/154555A1
The invention relates to a method for the external monitoring of a converter (10), the converter (10) being controlled by means of a first electronic control system (12) and the method being implemented by means of a second electronic co...  
WO/2019/155613A1
A first clamp circuit 4 clamps a voltage between a gate of a switching element Q1 and a first terminal to a first clamp voltage or lower. A control circuit 2 that controls the switching element Q1 has: a drive unit 5 that drives the swit...  
WO/2019/155890A1
Provided is a power feeding control device in which a control unit determines, after an instruction for turning off a first switch has been issued, whether a current is flowing through at least one of the first switch. The control unit, ...  
WO/2019/154856A1
Provided is a nano grid protection device for a nano grid including a distributed power supply, a large power grid including the nano grid protection device, and a method for controlling the nano grid protection device, wherein the nano ...  
WO/2019/150092A1
A device comprising a high temperature superconductor, HTS, circuit; wherein the HTS circuit comprises: a quenchable section comprising HTS material and connected in series to other elements of the HTS circuit, the HTS material comprisin...  
WO/2019/149385A1
The invention is concerned with a neutral arrangement (NA) for a converter station (RS) of a direct current power transmission system comprising a first converter (22) with such a converter station and with such a system. The neutral arr...  
WO/2019/149785A1
The invention concerns a conversion station (4) comprising: - a connection interface (460) to an AC grid (91); - a connection interface to a DC grid comprising first and second poles (441, 442); - an AC/DC converter (42); - for each of t...  
WO/2019/149416A1
The invention relates to a device for protecting at least one consumer in an on-board power supply, particularly of a motor vehicle, comprising at least one switching means (32) for supplying at least one consumer (22, 26, 28, 46) with e...  
WO/2019/150619A1
This transformer protection relay device of an embodiment has an acquisition unit and an arithmetic unit. The arithmetic unit: calculates at least the differential current of the phase current on a primary side of a transformer and the p...  
WO/2019/150091A1
A monitoring device for use in a cryogenic system. The monitoring device comprises first (201) and second (202) conducting elements and a current detector (205). The first conducting element comprises high temperature superconducting, HT...  

Matches 1 - 50 out of 33,830